• Journal of Distribution Science
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• v.20 no.3
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• pp.59-69
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• 2022

Purpose: The purpose of this study is to provide information for other journals as well as the continuous development of distribution science research by confirming the globalization performance of the Journal of Distribution Science (JDS), the main journal of KODISA. Research Design, Data, and Methodology: A total of 863 papers published in JDS from 2011 to 2021 searched by scienceON were divided into 4 periods and analyzed under the headings of submission system, standardity, collaboration, and degree of achievement of publication goals. SPSS 24.0 and R 4.1.1 package were used to perform the publication frequency analysis, crosstab-analysis, keyword frequency analysis, and LDA topic modeling were performed. In addition, trend analysis with weight applied to each word was performed. Results: It was found that the ratio of English-written papers, which is the indicator of a journal's starndardity, is continuously increasing, and the ratio of overseas authors, which is the indicator of collaboration, is also continuously increasing. It was confirmed through keyword trend analysis by period and LDA topic modeling results - which were weighted to confirm the degree of achievement of the journal's publication goal - that the articles published by the journal has been in agreement with monthly research topic proposed by JDS. Conclusion: By examining the five criteria for globalization, it can be concluded that JDS's efforts for globalization are achieving significant results and providing effective directions for other academic journals. However, in order for JDS to become a top academic journal, it was suggested that efforts should be made to establish a system for collaborative research by domestic and foreign authors, as well as to provide a clear definition for the monthly research topics and classification of sub-topics.

• Journal of Haehwa Medicine
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• v.11 no.1
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• pp.137-149
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• 2002

Dong-Eui-Bo-Gham Oriental medicine clinic on the purpose of losing their weight, from March 1, 2001 to March 1, 2002. The characteristics studied were gender, average weight, average height, distribution of body fat rate, base body metabolism rate, distribution of bmi, purpose of losing weight, treatment history, cause of gaining weight, clinical symptoms, distribution of Sahsang constitution, and change of body constituent. The conclusions drawn from this study were: 1. Among patients who came to the clinic for weight loss, there were 16 females (80%), and 4 males (20%). The ratio of gener was 1 to 4 (male to female) The distribution of their ages were 1 in one's teens (5%), 6 in their 20s (30%), 7 in their 30s (35%), and 6 in their 40s (30%). 2. The average weight of the patients was 72.155kg, and their average height was 163.2 cm. 3. The body fat rates of patients were distributed as: 2 were below 25 (10%), 3 were 25 to 30 (15%), 8 were 30 to 35 (40%), 5 were 35 to 40 (25%), and 2 were 40 to 45 (10%). 4. The base body metabolism rates of the patients were distributed as: 1 was below 1000Kcal (5%), 6 were 1100 to 1200Kcal (30%), 5 were 1200 to 1300Kcal (25%), 6 were 1300 to 1400Kcal (30%), and 2 were 1400 to 1500Kcal (10%). 5. The distribution of the patients bmi was: 4 were below 20 (20%), 5 were 20 to 25 (5%), 11 were 25 to 30 (55%), and 4 were 30 to 35 (20%). 6. The patients visited the clinic to lose their weight for the follwoing purposes: 5 were related to health concerns (25%), and 15 were to imprve their physical apprearnce (75%). Among patients who wanted to lose their weight becase of health concerns, 4 were married (20%) and 1 was single (5%). Among patiens who wanted to lose their weight to improve their physical appearance, 6 were married (30%) and 9 were single (45%). 7. As for the past treatment methods, physical exercises were most frequently used (19 patiens, 43%). 14 tried diet (32%), 8 used food substitues (19%), 1 was treated through Western medicine, and 1 was not related to any of these (2%). 8. Main reasons for weight gains were: 12 were related to overeating (40%), 10 were stress (33%), and 8 were lack of physical exercise (27%). 9. Physical symptoms included: 15 were fatigue (29%), 14 were constipation (26%), 13 were body swelling (25%), 3 were headache (5%), menstruation pain (4%), one was stomach upset (2%), 2 were related to physical structure, and 2 were related to other (4%). 10. As for the distribution of Sahsang constitution, 10 were Taeum (50%), 9 were Sohyang (45%), and 1 was Sohum (5%). 11. The average muscle weight was 44.87kg, average abdomen fat rate was 0.8999, and average base body metabolism rate was1369.2Kcal. 12. For the 5-week period, The body fat rate changes were 35.93 1.56% to 30.40 1.98% for A group, and 34.27 1.19% to 31.73 1.38% for B group. The abomen fat rate changes were 0.90 0.02% to 0.86 0.03 for A group, and 0.89 0.02% to 0.83 0.02% for B group. The body fat weight changes were 26.92 2.04kg to 20.74 1.98kg for A group, and 27.86 3.37kg to 24.58 3.02kg for B group. The body weight chages were 72.36 3.18kg to 64.54 2.55kg for A group, and 72.48 3.14kg to 67.74 3.11kg for B group. The muscle rate changes were 43.86 1.63kg to 43.10 1.76kg for A group, and 42.72 1.22kg to 41.60 1.86kg for B group. Overall, A group was superior to B group. 13. After being treated for obesity, 13 patients used exercise treatment (65%), 5 continued to receive obesity treatment (25%), and 2 used diet (10%). Based on these results, we could conclude that the importande of setting a criterion of obesity and weight control have changed according to changes in social and cultural values, and that treatment of obesity through Oriental medicine and research should keep up with changes in esthetic and psychological values.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.20 no.9
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• pp.793-797
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• 2007

In this paper, the long time breakdown characteristic of the epoxy composite, which is widely used in the insulation system for high voltage application, was estimated with Weibull distribution. In the procedure of the estimation, the short time breakdown characteristics for the epoxy composite specimens, which were made with the variation of hardener and/or filler, were tested firstly. Then the long time voltage-to-time test was implemented. Finally, the long time breakdown voltage of each specimen was estimated with the parameters obtained from the statistical treatment with Weibull distribution. Base on the results, it has been found that the optimal weight ratio of epoxy resin/hardener/filler that has the excellent long time breakdown characteristic was 100/100/65. It was due to the silane treatment which relieves the electric field at the interface between filler and epoxy.

• Korean Journal of Ichthyology
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• v.32 no.2
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• pp.55-62
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• 2020

The Relative weight index is an index for evaluating nutritional condition of fish by calculating a ratio of observed weight to standard weight. The purpose of this study is estimating standard Length-Weight relationships (standard LWRs) to calculate standard weight for application of relative weight index and analyze frequency distribution of relative weight index of 10 freshwater fish in the South Korea. The standard LWRs for each species was calculated by the Length-Weight data sets from 798 times of captures at 141 sites. The correlation of determination (r²) for all species was over 0.9 and values of parameter b were within the expected range according to Froese (2006). We calculated in increments of 10 from 10 to 90 percentile of relative weight index for each species, and it could be used as a standard for quantitative assessment of nutritional condition of freshwater fish.

• Korean Journal of Soil Science and Fertilizer
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• v.44 no.4
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• pp.662-666
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• 2011

In this study, distribution characteristics of dioxins in soils in Busan, Korea were investigated regarding different land use types. Soil sampling sites that distributed through the Busan city showed dioxin concentration ranging from 0.489 to $322.736pg-TEQ\;g^{-1}$ dry weight with a mean value of $26.257pg-TEQ\;g^{-1}$ dry weight. The mean dioxin concentrations of investigated soils ranged from 1.554 to $50.357pg-TEQ\;g^{-1}$ dry weight in consideration of each land use type. That in metal refinery sites with $50.357pg-TEQ\;g^{-1}$ dry weight was higher than any other sites, followed by waste incinerator sites with $44.285pg-TEQ\;g^{-1}$ dry weight. The majority of soil samples had the same dioxin congener profiling despite the different range of dioxin concentration. Octa-CDD was the major contributor among seventeen dioxin congeners with the range from 29.5 to 70.1% in real values. In contrast to real values, dioxin congener profiles in TEQ values were dominated by 2,3,4,7,8-PeCDF which contributed about 35.3~43.8% to the total dioxin concentrations. It was judged by these results that penta-CDF was the major contributor of soil samples in Busan city. The mean ratio of PCDFs/PCDDs in real values was about 0.71, but that in TEQ values was, in contrast to it, approximately 3.03.

• Journal of Korea Foresty Energy
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• v.18 no.1
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• pp.11-16
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• 1999

Dry weights of leaves, stem and floral organs of 15-year-old Tilia amurensis RUPR., were measured twice on 1 June and 20 August 1995 to examine the difference in biomass production between the reproductive and vegetative twigs which are morphologically neighboring and alternative. The following results were obtained : (1) The biomass of the reproductive twigs was greater than that of the vegetative twigs in both June and August. (2) The ratio of stem to total biomass in the reproductive and the vegetative twigs was greater in August than that in June, while the ratio of leaf biomass was greater in June than that in August. The ratio of floral organ to the total biomass in the reproductive twigs was 14.6% and 27.1% in June and August, respectively. (3) The total twig biomass per leaf biomass was greater in the reproductive twigs than that in the vegetative twigs in both June and August. (4) Net assimilation rate in the floral organs showed 21% of that in the leaves in June and 37% in August.

• Journal of ILASS-Korea
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• v.15 no.1
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• pp.17-24
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• 2010

The objective of this work is to analyze the macroscopic behavior of spray and injection characteristics on the DME blended biodiesel at different mixing ratios by using spray visualization and injection rate measurement system. The spray images were analyzed to a spray tip penetration, a spray cone angle and a spray area distribution at various mixing ratio of DME by weight. The influence of different injection pressure and ambient pressure on the fuel spray characteristics are investigated for the various injection parameters. In order to analyze the injection characteristics of test fuels, the fuel injection rate is measured at various blending ratio. The variation of viscosity of the blended fuel by the mixing of DME fuel shows the improved effect of spray developments. Also, it was found that the injection quantities of high blended ratio were larger than that of lower blended fuel. Also, higher blending fuel showed a faster evaporation than that of mixing ratio of test fuel because kinetic viscosity was changed by blending ratio.

• Journal of Korean Society of Water and Wastewater
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• v.23 no.1
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• pp.97-105
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• 2009

Analysis was done on the particle size distribution of sediments flown into Saemangeum from the Mankyung and Dongjin River. The organic pollutants and heavy metal existing in the sediments were analyzed, which was further used to study the properties of pollution in the sediments according to the particle size distribution. Conclusions shown below were made from these analyses. The particle size distribution showed a big difference between the upriver areas of Mankyung and Dongjin River. Particles under $75{\mu}m$ showed to be around 85% at Dongjin River, while it showed to be around 70% at Mankyung River. This kind of distribution in particle size concluded in greatly affecting the contamination density of the sediments. From the analysis done on the soil type of sediments, deposition in Mankyung River categorized into Silty loam and Sandy loam, where Silty loam covered most of area and deposition in Dongjin River categorized into Sand, Loamy sand, Silty loam, Sandy loam. Considering the weight ratio, the density of contamination of the sediments by particle size at Dongjin and Mankyung River has been analyzed to show that organic pollutants and heavy metals occupy more than 70% of the whole contamination in the range under the particle size of $75{\mu}m$.

• Clinical and Experimental Pediatrics
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• v.55 no.8
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• pp.280-285
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• 2012

Purpose: The authors analyzed the trend from the birth-related statistics of high birth weight infants (HBWIs) over 50 years in Korea from 1960 to 2010. Methods: We used 2 data sources, namely, the hospital units (1960's to 1990's) and Statistics Korea (1993 to 2010). The analyses include the incidence of HBWIs, birth weight distribution, sex ratio, and the relationship of HBWI to maternal age. Results: The hospital unit data indicated the incidence of HBWI as 3 to 7% in the 1960's and 1970's and 4 to 7% in the 1980's and 1990's. Data from Statistics Korea indicated the percentages of HBWIs among total live births decreased over the years: 6.7% (1993), 6.3% (1995), 5.1% (2000), 4.5% (2000), and 3.5% (2010). In HBWIs, the birth weight rages and percentage of incidence in infants' were 4.0 to 4.4 kg (90.3%), 4.5 to 4.9 kg (8.8%), 5.0 to 5.4 kg (0.8%), 5.5 to 5.9 kg (0.1%), and >6.0 kg (0.0%) in 2000 but were 92.2%, 7.2%, 0.6%, 0.0%, and 0.0% in 2009. The male to female ratio of HBWIs was 1.89 in 1993 and 1.84 in 2010. In 2010, the mother's age distribution correlated with low (4.9%), normal (91.0%), and high birth weights (3.6%): an increase in mother's age resulted in an increase in the frequency of low birth weight infants (LBWIs) and HBWIs. Conclusion: The incidence of HBWIs for the past 50 years has been dropping in Korea. The older the mother, the higher was the risk of a HBWI and LBWI. We hope that these findings would be utilized as basic data that will aid those managing HBWIs.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.39 no.4
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• pp.313-317
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• 2006

To prepare oligouronic acids from high-molecular-weight alginates, sea tangle (Laminaria japonica) alginates were hydrolyzed at various pHs for 1 hr at 80$^{\circ}C$. The effects of hydrolysis pH (HpH) on the average molecular weight (AMW) and MW distribution ratios (DRs) in the hydrolyzed alginates were investigated. As HpH decreased, the DRs of the alginates with MW>500 kDa and MW=300-500 kDa decreased exponentially, while it increased exponentially for MW<50 kDa. For MW=100-300 kDa, DR increased exponentially as HpH fell from 5.0 to 3.5, and then decreased exponentially. Similarly, for MW=50-100 kDa, DR increased exponentially as HpH increased to 1.0 from 5.0, and then decreased exponentially. As HpH decreased, the MW cutoff size and AMW of alginates fraction with the highest DR were decreased. For HpH 4.5 and 5.0, the MW cutoff size with the highest DRs was MW=300-500 kDa; the DRs were 28.9 and 32.6%, respectively; and the AMW of both was about 400 kDa, for HpH 3.5 and 4.0, the cutoff size was MW=100-300 kDa; the DRs were about 28%: and the AMWs were both about 200 kDa. For HpH 3.0, the cutoff size was MW=50-100; the DR was 29.0%; and the AMW was 73 kDa. For HpH values below 2.0, the MW cutoff size with the highest DRs was MW<50 kDa, and all of the AMWs were below 28 kDa.